Use ONE asterisk; as a regular expression.

And if it contains this...
*
[x] This string is a regular expression

I guess I'm having trouble with the syntax I'm using to create my rule. I want all attachments, regardless of filename or extension, to be saved to a My Documents directory. (Also want the real world filename saved so the file is identifiable.) In the "and it contains" box, I've tried "*.*" (without the quotes) to indicate all filenames and extensions. I open up the directory after sending myself a test attachment, and it's empty.

Either I have to designate my directory differently, or I have to differently define the conditions for the attachment-to-be-saved, which would be all of them.